bittin [1] filed an orphan request for thunderbird-beta [2]:

Hey!

yurikoles is in the Ukraine warzone still and can't update firefox-
beta and firefox-beta-i18n packages frequently at the moment (so i am
asking if any AUR moderator) can add me as a co-maintainer for the
packages? have talked to yurikoles a year or so ago

[1] https://aur.archlinux.org/account/bittin/
[2] https://aur.archlinux.org/pkgbase/thunderbird-beta/